[kepler-users] kepler parameters
kianwee chen
chenkianwee at gmail.com
Mon Oct 24 20:22:40 PDT 2011
Thanks for the quick reply
I often end up using $CLASSPATH, which looks in the classpath for the
resource.
I type in the $CLASSPATH and this is what is return " xxxxxxCLASSPATHxxxxxx
" is there a way to set the classpath ?
For a CompositeActor, you would probably need to edit the MoML by hand and
add a Parameter:
How do you edit the MoML of a composite actor by hand ? I right click and
try all the options but did not get any options that allow me to edit the
MoML
thanks
ckw
I typed in the $CLASSPATH and I only get this
On Tue, Oct 25, 2011 at 12:46 AM, Christopher Brooks
<cxh at eecs.berkeley.edu>wrote:
> Hi Kianwee,
> My comments are interspersed with your text below.
>
>
> On 10/24/11 8:39 AM, Edward A. Lee wrote:
>
>
> The documentation for FileParameter says:
>
> "If this attribute contains a parameter named allowFiles with value false,
> then when a file browser is used to select a file, that file browser will be
> set to not show files (only directories will be shown). If this attribute
> contains a parameter named allowDirectories with value true, then the file
> browser will permit the user to select directories (the default behavior is
> that when a directory is selected, that directory is opened and its
> contained files and directories are listed)."
>
> (I'm not sure about Kepler, but in Ptolemy, just drag in a FileParameter
> from the Utilities menu, right click on it, and select Documentation.)
>
> I'm not sure what you mean by "list parameter." Can you cite a specific
> example?
>
> Edward
>
>
> On 10/24/11 3:22 AM, kianwee chen wrote:
>
> Hi everyone, I am trying to create a composite actor and trying to setup
> the parameters for the composite actor. Thus I have some question on
> adding parameters in composite actors.
>
> 1.) Directory parameter:
>
> -I would like to let the users specify a directory on the composite
> actor parameters interface, I know there is a file parameter but I need
> a directory parameter. How can I customise a directory parameter ?
>
>
> See Edward's explanation above.
>
>
> -I have a problem with relative path too, when I setup a file parameter
> it returns the string of the path relative to my current kepler file
> that is open. Is there a way to get the base file path ? Something like
> $CWD, but instead the file path of my currently open file ?
>
>
> The FileParameter documentation says:
>
> <p>If the model containing
> this
>
> attribute has been saved to a MoML file, then the file name can
> be
>
> given relative to the directory containing that MoML
> file.
>
> If the model has not been saved to a
> file,
>
> then the classpath is used for identifying relative file
> names.</p>
>
>
>
> <p>Files can be given relative to a <i>base</i>, where the
> baseis
>
> the URI of the first container above this one that has a
> URIAttribute.
>
> Normally, this URI specifies the file or URL containing the
> model
>
> definition. Thus, files that are referred to here can be kept in
> the
>
> same directory as the model, or in a related directory, and
> can
>
> moved together with the
> model.</p>
>
>
> So, if you type in a relative path, then the file should be relative to the
> model.
>
> There is a Ptolemy test at
> ptolemy/actor/lib/io/test/auto/FileReader.xml
> that illustrates the various possibilities. If this test is run in the
> ptolemy/actor/lib/io/test
> directory, then it will work. If the test is run elsewhere, then the
> "FileReader Relative to CWD"
> actor will fail because that actor uses $CWD, which is expected to be
> ptolemy/actor/lib/io/test
> in that test.
>
> In Java, the value of the user.dir property is the " User's current working
> directory".
> However, when a Java program is opened in a graphical windowing system by
> clicking on
> a menu choice, then the value of user.dir is not clearly defined. It
> should probably be
> the same value as the user's home directory, but I've seen various values.
> For a FileParameter, the value of $CWD is set to the value of the user.dir
> property,
> which is probably not what you want. I often end up using $CLASSPATH,
> which looks in
> the classpath for the resource. The file chooser does not have a way to
> add $CLASSPATH,
> you have to type it in manually.
>
>
>
>
> 2.) List Parameter:
> - I have seen some actor have List parameters how do I customise one for
> my composite actor too ?
>
>
> For atomic actors, the ptolemy/actor/lib/MathFunction.java uses the
> addChoice() method:
>
> //
> Parameters
>
> function = new StringParameter(this, "function");
> function.setExpression("exp");
> function.addChoice("exp");
> function.addChoice("log");
> function.addChoice("modulo");
> function.addChoice("sign");
> function.addChoice("square");
> function.addChoice("sqrt");
> _function = _EXP;
>
> I believe that addChoice() is defined in ptolemy/gui/Query.java
>
> For a CompositeActor, you would probably need to edit the MoML by hand and
> add a Parameter:
>
> <property name="function" class="ptolemy.data.expr.StringParameter"
> value="square">
> <property name="style"
> class="ptolemy.actor.gui.style.ChoiceStyle">
> <property name="exp"
> class="ptolemy.kernel.util.StringAttribute" value="exp">
> </property>
> <property name="log" class="ptolemy.kernel.util.StringAttribute"
> value="log">
> </property>
> <property name="modulo"
> class="ptolemy.kernel.util.StringAttribute" value="modulo">
> </property>
> <property name="sign"
> class="ptolemy.kernel.util.StringAttribute" value="sign">
> </property>
> <property name="square" class="ptolemy.kernel.util.StringAttribute"
> value="square">
> </property>
> <property name="sqrt"
> class="ptolemy.kernel.util.StringAttribute" value="sqrt">
> </property>
> </property>
> </property>
>
> _Christopher
>
>
> Thanks alot !!
> ckw
>
>
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>
> --
> Christopher Brooks, PMP University of California
> CHESS Executive Director US Mail: 337 Cory Hall
> Programmer/Analyst CHESS/Ptolemy/Trust Berkeley, CA 94720-1774
> ph: 510.643.9841 (Office: 545Q Cory)
> home: (F-Tu) 707.665.0131 cell: 707.332.0670
>
>
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